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2250 lines (1877 loc) · 78.7 KB
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#include "il2cpp-config.h"
#include <algorithm>
#include "gc/GCHandle.h"
#include "metadata/ArrayMetadata.h"
#include "metadata/GenericMetadata.h"
#include "metadata/GenericMethod.h"
#include "metadata/FieldLayout.h"
#include "metadata/Il2CppTypeVector.h"
#include "os/Atomic.h"
#include "os/Mutex.h"
#include "utils/Memory.h"
#include "utils/StringUtils.h"
#include "vm/Assembly.h"
#include "vm/Class.h"
#include "vm/ClassInlines.h"
#include "vm/Exception.h"
#include "vm/Field.h"
#include "vm/GenericClass.h"
#include "vm/GenericContainer.h"
#include "vm/Image.h"
#include "vm/MetadataAlloc.h"
#include "vm/MetadataCache.h"
#include "vm/MetadataLock.h"
#include "vm/Method.h"
#include "vm/Property.h"
#include "vm/Runtime.h"
#include "vm/Reflection.h"
#include "vm/Thread.h"
#include "vm/Type.h"
#include "vm/Object.h"
#include "il2cpp-class-internals.h"
#include "il2cpp-object-internals.h"
#include "il2cpp-runtime-stats.h"
#include "il2cpp-tabledefs.h"
#include "gc/GarbageCollector.h"
#include "utils/Il2CppHashMap.h"
#include "utils/StringUtils.h"
#include "utils/HashUtils.h"
#include <string>
#include <memory.h>
#include <algorithm>
#include <limits>
// ==={{ huatuo
#include <set>
#include "huatuo/metadata/MetadataUtil.h"
#include "huatuo/interpreter/Engine.h"
#include "huatuo/interpreter/Interpreter.h"
#include "huatuo/interpreter/InterpreterModule.h"
// ===}} huatuo
namespace il2cpp
{
namespace vm
{
const int Class::IgnoreNumberOfArguments = -1;
static il2cpp::utils::dynamic_array<Il2CppClass*> s_staticFieldData;
static int32_t s_FinalizerSlot = -1;
static int32_t s_GetHashCodeSlot = -1;
static void SetupGCDescriptor(Il2CppClass* klass);
static void GetBitmapNoInit(Il2CppClass* klass, size_t* bitmap, size_t& maxSetBit, size_t parentOffset);
static Il2CppClass* ResolveGenericInstanceType(Il2CppClass*, const il2cpp::vm::TypeNameParseInfo&, TypeSearchFlags searchFlags);
static bool InitLocked(Il2CppClass *klass, const il2cpp::os::FastAutoLock& lock);
static void SetupVTable(Il2CppClass *klass, const il2cpp::os::FastAutoLock& lock);
Il2CppClass* Class::FromIl2CppType(const Il2CppType* type, bool throwOnError)
{
#define RETURN_DEFAULT_TYPE(fieldName) do { IL2CPP_ASSERT(il2cpp_defaults.fieldName); return il2cpp_defaults.fieldName; } while (false)
switch (type->type)
{
case IL2CPP_TYPE_OBJECT:
RETURN_DEFAULT_TYPE(object_class);
case IL2CPP_TYPE_VOID:
RETURN_DEFAULT_TYPE(void_class);
case IL2CPP_TYPE_BOOLEAN:
RETURN_DEFAULT_TYPE(boolean_class);
case IL2CPP_TYPE_CHAR:
RETURN_DEFAULT_TYPE(char_class);
case IL2CPP_TYPE_I1:
RETURN_DEFAULT_TYPE(sbyte_class);
case IL2CPP_TYPE_U1:
RETURN_DEFAULT_TYPE(byte_class);
case IL2CPP_TYPE_I2:
RETURN_DEFAULT_TYPE(int16_class);
case IL2CPP_TYPE_U2:
RETURN_DEFAULT_TYPE(uint16_class);
case IL2CPP_TYPE_I4:
RETURN_DEFAULT_TYPE(int32_class);
case IL2CPP_TYPE_U4:
RETURN_DEFAULT_TYPE(uint32_class);
case IL2CPP_TYPE_I:
RETURN_DEFAULT_TYPE(int_class);
case IL2CPP_TYPE_U:
RETURN_DEFAULT_TYPE(uint_class);
case IL2CPP_TYPE_I8:
RETURN_DEFAULT_TYPE(int64_class);
case IL2CPP_TYPE_U8:
RETURN_DEFAULT_TYPE(uint64_class);
case IL2CPP_TYPE_R4:
RETURN_DEFAULT_TYPE(single_class);
case IL2CPP_TYPE_R8:
RETURN_DEFAULT_TYPE(double_class);
case IL2CPP_TYPE_STRING:
RETURN_DEFAULT_TYPE(string_class);
case IL2CPP_TYPE_TYPEDBYREF:
RETURN_DEFAULT_TYPE(typed_reference_class);
case IL2CPP_TYPE_ARRAY:
{
Il2CppClass* elementClass = FromIl2CppType(type->data.array->etype, throwOnError);
return Class::GetBoundedArrayClass(elementClass, type->data.array->rank, true);
}
case IL2CPP_TYPE_PTR:
return Class::GetPtrClass(type->data.type);
case IL2CPP_TYPE_FNPTR:
IL2CPP_NOT_IMPLEMENTED(Class::FromIl2CppType);
return NULL; //mono_fnptr_class_get (type->data.method);
case IL2CPP_TYPE_SZARRAY:
{
Il2CppClass* elementClass = FromIl2CppType(type->data.type, throwOnError);
return Class::GetArrayClass(elementClass, 1);
}
case IL2CPP_TYPE_CLASS:
case IL2CPP_TYPE_VALUETYPE:
return Type::GetClass(type);
case IL2CPP_TYPE_GENERICINST:
return GenericClass::GetClass(type->data.generic_class, throwOnError);
case IL2CPP_TYPE_VAR:
return Class::FromGenericParameter(Type::GetGenericParameterHandle(type));
case IL2CPP_TYPE_MVAR:
return Class::FromGenericParameter(Type::GetGenericParameterHandle(type));
default:
IL2CPP_NOT_IMPLEMENTED(Class::FromIl2CppType);
}
return NULL;
#undef RETURN_DEFAULT_TYPE
}
/* From ECMA-335, I.8.7 Assignment compatibility:
The reduced type of a type T is the following:
1. If the underlying type of T is:
a. int8, or unsigned int8, then its reduced type is int8.
b. int16, or unsigned int16, then its reduced type is int16.
c. int32, or unsigned int32, then its reduced type is int32.
d. int64, or unsigned int64, then its reduced type is int64.
e. native int, or unsigned native int, then its reduced type is native int.
2. Otherwise, the reduced type is itself.
*/
static inline const Il2CppClass* GetReducedType(const Il2CppClass* type)
{
switch (type->byval_arg.type)
{
case IL2CPP_TYPE_I1:
case IL2CPP_TYPE_U1:
return il2cpp_defaults.sbyte_class;
case IL2CPP_TYPE_I2:
case IL2CPP_TYPE_U2:
return il2cpp_defaults.int16_class;
case IL2CPP_TYPE_I4:
case IL2CPP_TYPE_U4:
return il2cpp_defaults.int32_class;
case IL2CPP_TYPE_I8:
case IL2CPP_TYPE_U8:
return il2cpp_defaults.int64_class;
case IL2CPP_TYPE_I:
case IL2CPP_TYPE_U:
return il2cpp_defaults.int_class;
default:
return type;
}
}
Il2CppClass* Class::FromSystemType(Il2CppReflectionType *type)
{
Il2CppClass *klass = Class::FromIl2CppType(type->type);
Class::Init(klass);
return klass;
}
static void SetupInterfacesLocked(Il2CppClass* klass, const il2cpp::os::FastAutoLock& lock)
{
if (klass->generic_class)
{
Il2CppClass* genericTypeDefinition = GenericClass::GetTypeDefinition(klass->generic_class);
Il2CppGenericContext* context = &klass->generic_class->context;
if (genericTypeDefinition->interfaces_count > 0 && klass->implementedInterfaces == NULL)
{
IL2CPP_ASSERT(genericTypeDefinition->interfaces_count == klass->interfaces_count);
klass->implementedInterfaces = (Il2CppClass**)MetadataCalloc(genericTypeDefinition->interfaces_count, sizeof(Il2CppClass*));
for (uint16_t i = 0; i < genericTypeDefinition->interfaces_count; i++)
klass->implementedInterfaces[i] = Class::FromIl2CppType(il2cpp::metadata::GenericMetadata::InflateIfNeeded(MetadataCache::GetInterfaceFromOffset(genericTypeDefinition, i), context, false));
}
}
else if (klass->rank > 0)
{
if (klass->implementedInterfaces == NULL)
il2cpp::metadata::ArrayMetadata::SetupArrayInterfaces(klass, lock);
}
else
{
if (klass->interfaces_count > 0 && klass->implementedInterfaces == NULL)
{
klass->implementedInterfaces = (Il2CppClass**)MetadataCalloc(klass->interfaces_count, sizeof(Il2CppClass*));
for (uint16_t i = 0; i < klass->interfaces_count; i++)
klass->implementedInterfaces[i] = Class::FromIl2CppType(MetadataCache::GetInterfaceFromOffset(klass, i));
}
}
}
typedef Il2CppHashMap<Il2CppMetadataGenericParameterHandle, Il2CppClass*, utils::PassThroughHash<Il2CppMetadataGenericParameterHandle> > GenericParameterMap;
static GenericParameterMap s_GenericParameterMap;
Il2CppClass* Class::FromGenericParameter(Il2CppMetadataGenericParameterHandle param)
{
il2cpp::os::FastAutoLock lock(&g_MetadataLock);
GenericParameterMap::const_iterator iter = s_GenericParameterMap.find(param);
if (iter != s_GenericParameterMap.end())
return iter->second;
Il2CppClass* klass = (Il2CppClass*)MetadataCalloc(1, sizeof(Il2CppClass));
klass->klass = klass;
Il2CppGenericParameterInfo paramInfo = MetadataCache::GetGenericParameterInfo(param);
IL2CPP_ASSERT(paramInfo.containerHandle != NULL);
klass->name = paramInfo.name;
klass->namespaze = "";
klass->image = GenericContainer::GetDeclaringType(paramInfo.containerHandle)->image;
klass->initialized = true;
UpdateInitializedAndNoError(klass);
klass->parent = il2cpp_defaults.object_class;
klass->castClass = klass->element_class = klass;
klass->flags = TYPE_ATTRIBUTE_PUBLIC;
bool containerIsMethod = MetadataCache::GetGenericContainerIsMethod(paramInfo.containerHandle);
MetadataCache::MakeGenericArgType(paramInfo.containerHandle, param, &klass->byval_arg);
MetadataCache::MakeGenericArgType(paramInfo.containerHandle, param, &klass->this_arg);
klass->this_arg.byref = true;
klass->instance_size = sizeof(void*);
klass->thread_static_fields_size = -1;
klass->native_size = -1;
klass->size_inited = true;
s_GenericParameterMap.insert(std::make_pair(param, klass));
return klass;
}
Il2CppClass* Class::GetElementClass(Il2CppClass *klass)
{
return klass->element_class;
}
const Il2CppType* Class::GetEnumBaseType(Il2CppClass *klass)
{
if (klass->element_class == klass)
/* SRE or broken types */
return NULL;
else
return &klass->element_class->byval_arg;
}
const EventInfo* Class::GetEvents(Il2CppClass *klass, void* *iter)
{
if (!iter)
return NULL;
if (!*iter)
{
Class::SetupEvents(klass);
if (klass->event_count == 0)
return NULL;
*iter = const_cast<EventInfo*>(klass->events);
return klass->events;
}
const EventInfo* eventInfo = (const EventInfo*)*iter;
eventInfo++;
if (eventInfo < klass->events + klass->event_count)
{
*iter = const_cast<EventInfo*>(eventInfo);
return eventInfo;
}
return NULL;
}
FieldInfo* Class::GetFields(Il2CppClass *klass, void* *iter)
{
if (!iter)
return NULL;
if (!*iter)
{
Class::SetupFields(klass);
if (klass->field_count == 0)
return NULL;
*iter = klass->fields;
return klass->fields;
}
FieldInfo* fieldAddress = (FieldInfo*)*iter;
fieldAddress++;
if (fieldAddress < klass->fields + klass->field_count)
{
*iter = fieldAddress;
return fieldAddress;
}
return NULL;
}
FieldInfo* Class::GetFieldFromName(Il2CppClass *klass, const char* name)
{
while (klass)
{
void* iter = NULL;
FieldInfo* field;
while ((field = GetFields(klass, &iter)))
{
if (strcmp(name, Field::GetName(field)) != 0)
continue;
return field;
}
klass = klass->parent;
}
return NULL;
}
const MethodInfo* Class::GetFinalizer(Il2CppClass *klass)
{
if (!klass->initialized)
Class::Init(klass);
if (!klass->has_finalize)
return NULL;
#if IL2CPP_TINY
IL2CPP_ASSERT(0 && "System.Object does not have a finalizer in the Tiny mscorlib, so we don't have a finalizer slot.");
#endif
return klass->vtable[s_FinalizerSlot].method;
}
int32_t Class::GetInstanceSize(const Il2CppClass *klass)
{
IL2CPP_ASSERT(klass->size_inited);
return klass->instance_size;
}
Il2CppClass* Class::GetInterfaces(Il2CppClass *klass, void* *iter)
{
if (!iter)
return NULL;
if (!*iter)
{
Class::SetupInterfaces(klass);
if (klass->interfaces_count == 0)
return NULL;
*iter = &klass->implementedInterfaces[0];
return klass->implementedInterfaces[0];
}
Il2CppClass** interfaceAddress = (Il2CppClass**)*iter;
interfaceAddress++;
if (interfaceAddress < &klass->implementedInterfaces[klass->interfaces_count])
{
*iter = interfaceAddress;
return *interfaceAddress;
}
return NULL;
}
const MethodInfo* Class::GetMethods(Il2CppClass *klass, void* *iter)
{
if (!iter)
return NULL;
if (!*iter)
{
Class::SetupMethods(klass);
if (klass->method_count == 0)
return NULL;
*iter = &klass->methods[0];
return klass->methods[0];
}
const MethodInfo** methodAddress = (const MethodInfo**)*iter;
methodAddress++;
if (methodAddress < &klass->methods[klass->method_count])
{
*iter = methodAddress;
return *methodAddress;
}
return NULL;
}
const MethodInfo* Class::GetMethodFromName(Il2CppClass *klass, const char* name, int argsCount)
{
return GetMethodFromNameFlags(klass, name, argsCount, 0);
}
const MethodInfo* Class::GetMethodFromNameFlags(Il2CppClass *klass, const char* name, int argsCount, int32_t flags)
{
Class::Init(klass);
while (klass != NULL)
{
void* iter = NULL;
while (const MethodInfo* method = Class::GetMethods(klass, &iter))
{
if (method->name[0] == name[0] &&
!strcmp(name, method->name) &&
(argsCount == IgnoreNumberOfArguments || method->parameters_count == argsCount) &&
((method->flags & flags) == flags))
{
return method;
}
}
klass = klass->parent;
}
return NULL;
}
const char* Class::GetName(Il2CppClass *klass)
{
return klass->name;
}
const char* Class::GetNamespace(Il2CppClass *klass)
{
return klass->namespaze;
}
Il2CppClass* Class::GetNestedTypes(Il2CppClass *klass, void* *iter)
{
if (!iter)
return NULL;
if (klass->generic_class)
{
IL2CPP_ASSERT(0 && "Class::GetNestedTypes should only be called on non-generic types and generic type definitions");
return NULL;
}
if (!*iter)
{
Class::SetupNestedTypes(klass);
if (klass->nested_type_count == 0)
return NULL;
*iter = &klass->nestedTypes[0];
return klass->nestedTypes[0];
}
Il2CppClass** nestedTypeAddress = (Il2CppClass**)*iter;
nestedTypeAddress++;
if (nestedTypeAddress < &klass->nestedTypes[klass->nested_type_count])
{
*iter = nestedTypeAddress;
return *nestedTypeAddress;
}
return NULL;
}
size_t Class::GetNumMethods(const Il2CppClass* klass)
{
return klass->method_count;
}
size_t Class::GetNumProperties(const Il2CppClass* klass)
{
return klass->property_count;
}
size_t Class::GetNumFields(const Il2CppClass* klass)
{
return klass->field_count;
}
Il2CppClass* Class::GetParent(Il2CppClass *klass)
{
return klass->parent;
}
const PropertyInfo* Class::GetProperties(Il2CppClass *klass, void* *iter)
{
if (!iter)
return NULL;
if (!*iter)
{
Class::SetupProperties(klass);
if (klass->property_count == 0)
return NULL;
*iter = const_cast<PropertyInfo*>(klass->properties);
return klass->properties;
}
const PropertyInfo* property = (const PropertyInfo*)*iter;
property++;
if (property < klass->properties + klass->property_count)
{
*iter = const_cast<PropertyInfo*>(property);
return property;
}
return NULL;
}
const PropertyInfo* Class::GetPropertyFromName(Il2CppClass *klass, const char* name)
{
while (klass)
{
void* iter = NULL;
while (const PropertyInfo* prop = GetProperties(klass, &iter))
{
if (strcmp(name, Property::GetName(prop)) != 0)
continue;
return prop;
}
klass = klass->parent;
}
return NULL;
}
int32_t Class::GetValueSize(Il2CppClass *klass, uint32_t *align)
{
int32_t size;
if (!klass->size_init_pending)
SetupFields(klass);
IL2CPP_ASSERT(klass->valuetype);
if (!klass->size_inited)
{
// If the size of a value type is not intialized, we cannot continue.
// This might mean this is a recursively defined struct, where one value type
// has a field of anotehr value type, which in turn has the first as a field.
// The runtime should throw a type load exception in this case.
std::string message;
message += "Could not load type '";
if (strlen(klass->namespaze) != 0)
{
message += klass->namespaze;
message += ":";
}
message += klass->name;
message += "'";
klass->has_initialization_error = true;
Class::UpdateInitializedAndNoError(klass);
klass->initializationExceptionGCHandle = gc::GCHandle::New(il2cpp::vm::Exception::GetTypeLoadException(message.c_str()), false);
size = 1;
}
else
{
size = Class::GetInstanceSize(klass) - sizeof(Il2CppObject);
}
if (align)
*align = klass->minimumAlignment;
return size;
}
bool Class::HasParent(Il2CppClass *klass, Il2CppClass *parent)
{
Class::SetupTypeHierarchy(klass);
Class::SetupTypeHierarchy(parent);
return ClassInlines::HasParentUnsafe(klass, parent);
}
bool Class::IsAssignableFrom(Il2CppClass *klass, Il2CppClass *oklass)
{
// Cast to original class - fast path
if (klass == oklass)
return true;
Class::Init(klass);
Class::Init(oklass);
// Following checks are always going to fail for interfaces
if (!IsInterface(klass))
{
// Array
if (klass->rank)
{
if (oklass->rank != klass->rank)
return false;
if (oklass->castClass->valuetype)
{
// Full array covariance is defined only for reference types.
// For value types, array element reduced types must match
return GetReducedType(klass->castClass) == GetReducedType(oklass->castClass);
}
return Class::IsAssignableFrom(klass->castClass, oklass->castClass);
}
// System.Object
else if (klass == il2cpp_defaults.object_class)
{
return true;
}
// Left is System.Nullable<>
else if (Class::IsNullable(klass))
{
if (Class::IsNullable(oklass))
IL2CPP_NOT_IMPLEMENTED(Class::IsAssignableFrom);
Il2CppClass* nullableArg = Class::GetNullableArgument(klass);
return Class::IsAssignableFrom(nullableArg, oklass);
}
if (klass->parent == il2cpp_defaults.multicastdelegate_class && klass->generic_class != NULL)
{
Il2CppMetadataGenericContainerHandle containerHandle = MetadataCache::GetGenericContainerFromGenericClass(klass->image, klass->generic_class);
if (IsGenericClassAssignableFrom(klass, oklass, klass->image, containerHandle))
return true;
}
return ClassInlines::HasParentUnsafe(oklass, klass);
}
if (klass->generic_class != NULL)
{
// checking for simple reference equality is not enough in this case because generic interface might have covariant and/or contravariant parameters
Il2CppMetadataGenericContainerHandle containerHandle = MetadataCache::GetGenericContainerFromGenericClass(klass->image, klass->generic_class);
for (Il2CppClass* iter = oklass; iter != NULL; iter = iter->parent)
{
if (IsGenericClassAssignableFrom(klass, iter, klass->image, containerHandle))
return true;
for (uint16_t i = 0; i < iter->interfaces_count; ++i)
{
if (IsGenericClassAssignableFrom(klass, iter->implementedInterfaces[i], klass->image, containerHandle))
return true;
}
for (uint16_t i = 0; i < iter->interface_offsets_count; ++i)
{
if (IsGenericClassAssignableFrom(klass, iter->interfaceOffsets[i].interfaceType, klass->image, containerHandle))
return true;
}
}
}
else
{
for (Il2CppClass* iter = oklass; iter != NULL; iter = iter->parent)
{
for (uint16_t i = 0; i < iter->interfaces_count; ++i)
{
if (iter->implementedInterfaces[i] == klass)
return true;
}
// Check the interfaces we may have grafted on to the type (e.g IList,
// ICollection, IEnumerable for array types).
for (uint16_t i = 0; i < iter->interface_offsets_count; ++i)
{
if (iter->interfaceOffsets[i].interfaceType == klass)
return true;
}
}
}
return false;
}
bool Class::IsAssignableFrom(Il2CppReflectionType * type, Il2CppReflectionType * c)
{
Il2CppClass *klass;
Il2CppClass *klassc;
klass = FromIl2CppType(type->type);
klassc = FromIl2CppType(c->type);
if (type->type->byref && !c->type->byref)
return false;
return IsAssignableFrom(klass, klassc);
}
bool Class::IsGeneric(const Il2CppClass *klass)
{
return klass->is_generic;
}
bool Class::IsInflated(const Il2CppClass *klass)
{
return klass->generic_class != NULL;
}
bool Class::IsSubclassOf(Il2CppClass *klass, Il2CppClass *klassc, bool check_interfaces)
{
Class::SetupTypeHierarchy(klass);
Class::SetupTypeHierarchy(klassc);
Class::SetupInterfaces(klass);
if (check_interfaces && IsInterface(klassc) && !IsInterface(klass))
{
Il2CppClass *oklass = klass;
while (oklass)
{
Class::SetupInterfaces(oklass);
// TODO: we probably need to implement a faster check here
for (uint16_t i = 0; i < oklass->interfaces_count; i++)
{
if (oklass->implementedInterfaces[i] == klassc)
return true;
}
oklass = oklass->parent;
}
}
else if (check_interfaces && IsInterface(klassc) && IsInterface(klass))
{
// TODO: we probably need to implement a faster check here
for (uint16_t i = 0; i < klass->interfaces_count; i++)
{
if (klass->implementedInterfaces[i] == klassc)
return true;
}
}
else
{
if (!IsInterface(klass) && ClassInlines::HasParentUnsafe(klass, klassc))
return true;
}
/*
* MS.NET thinks interfaces are a subclass of Object, so we think it as
* well.
*/
if (klassc == il2cpp_defaults.object_class)
return true;
return false;
}
bool Class::IsValuetype(const Il2CppClass *klass)
{
return klass->valuetype;
}
bool Class::IsBlittable(const Il2CppClass *klass)
{
return klass->is_blittable;
}
enum FieldLayoutKind
{
FIELD_LAYOUT_INSTANCE,
FIELD_LAYOUT_STATIC,
FIELD_LAYOUT_THREADSTATIC,
};
static void SetupFieldOffsetsLocked(FieldLayoutKind fieldLayoutKind, Il2CppClass* klass, size_t size, const std::vector<size_t>& fieldOffsets, const il2cpp::os::FastAutoLock& lock)
{
IL2CPP_ASSERT(size < std::numeric_limits<uint32_t>::max());
if (fieldLayoutKind == FIELD_LAYOUT_INSTANCE)
klass->instance_size = static_cast<uint32_t>(size);
if (fieldLayoutKind == FIELD_LAYOUT_STATIC)
klass->static_fields_size = static_cast<uint32_t>(size);
if (fieldLayoutKind == FIELD_LAYOUT_THREADSTATIC)
klass->thread_static_fields_size = static_cast<uint32_t>(size);
if (!(klass->flags & TYPE_ATTRIBUTE_EXPLICIT_LAYOUT))
{
size_t fieldIndex = 0;
for (uint16_t i = 0; i < klass->field_count; i++)
{
FieldInfo* field = klass->fields + i;
if (fieldLayoutKind == FIELD_LAYOUT_INSTANCE && field->type->attrs & FIELD_ATTRIBUTE_STATIC)
continue;
if (fieldLayoutKind == FIELD_LAYOUT_STATIC && !Field::IsNormalStatic(field))
continue;
if (fieldLayoutKind == FIELD_LAYOUT_THREADSTATIC && !Field::IsThreadStatic(field))
continue;
if (fieldLayoutKind == FIELD_LAYOUT_THREADSTATIC)
{
field->offset = THREAD_STATIC_FIELD_OFFSET;
MetadataCache::AddThreadLocalStaticOffsetForFieldLocked(field, static_cast<int32_t>(fieldOffsets[fieldIndex]), lock);
fieldIndex++;
continue;
}
field->offset = static_cast<int32_t>(fieldOffsets[fieldIndex]);
fieldIndex++;
}
}
}
static void ValidateFieldOffsets(FieldLayoutKind fieldLayoutKind, Il2CppClass* klass, size_t size, const std::vector<size_t>& fieldOffsets)
{
if (fieldLayoutKind == FIELD_LAYOUT_INSTANCE && klass->parent && !(klass->flags & TYPE_ATTRIBUTE_EXPLICIT_LAYOUT))
IL2CPP_ASSERT(klass->instance_size == size);
if (fieldLayoutKind == FIELD_LAYOUT_STATIC)
IL2CPP_ASSERT(klass->static_fields_size == size);
if (fieldLayoutKind == FIELD_LAYOUT_THREADSTATIC)
IL2CPP_ASSERT(klass->thread_static_fields_size == size);
if (!(klass->flags & TYPE_ATTRIBUTE_EXPLICIT_LAYOUT))
{
size_t fieldIndex = 0;
for (uint16_t i = 0; i < klass->field_count; i++)
{
FieldInfo* field = klass->fields + i;
if (fieldLayoutKind == FIELD_LAYOUT_INSTANCE && field->type->attrs & FIELD_ATTRIBUTE_STATIC)
continue;
if (fieldLayoutKind == FIELD_LAYOUT_STATIC && !Field::IsNormalStatic(field))
continue;
if (fieldLayoutKind == FIELD_LAYOUT_THREADSTATIC && !Field::IsThreadStatic(field))
continue;
if (fieldLayoutKind == FIELD_LAYOUT_THREADSTATIC)
{
IL2CPP_ASSERT(fieldOffsets[fieldIndex] == -1);
fieldIndex++;
continue;
}
IL2CPP_ASSERT(field->offset == fieldOffsets[fieldIndex]);
fieldIndex++;
}
}
}
static size_t UpdateInstanceSizeForGenericClass(Il2CppClass* klass, size_t instanceSize)
{
// need to set this in case there are no fields in a generic instance type
if (klass->generic_class)
{
const Il2CppClass* genericTypeDef = il2cpp::vm::MetadataCache::GetTypeInfoFromType(klass->generic_class->type);
// If the generic class has an instance size, it was explictly set
if (genericTypeDef->instance_size > 0 && genericTypeDef->instance_size > instanceSize)
instanceSize = genericTypeDef->instance_size;
klass->instance_size = static_cast<uint32_t>(instanceSize);
}
return instanceSize;
}
static void LayoutFieldsLocked(Il2CppClass *klass, const il2cpp::os::FastAutoLock& lock)
{
if (Class::IsGeneric(klass))
return;
size_t instanceSize = 0;
size_t actualSize = 0;
if (klass->parent)
{
IL2CPP_ASSERT(klass->parent->size_inited);
klass->has_references |= klass->parent->has_references;
instanceSize = klass->parent->instance_size;
actualSize = klass->parent->actualSize;
if (klass->valuetype)
klass->minimumAlignment = 1;
else
klass->minimumAlignment = klass->parent->minimumAlignment;
}
else
{
actualSize = instanceSize = sizeof(Il2CppObject);
klass->minimumAlignment = sizeof(Il2CppObject*);
}
// ==={{ huatuo
bool isInterpreterType = huatuo::metadata::IsInterpreterType(klass);
bool computSize = klass->instance_size == 0 && isInterpreterType;
bool isExplictLayout = klass->flags & TYPE_ATTRIBUTE_EXPLICIT_LAYOUT;
bool computLayout = isInterpreterType;
bool computInstanceFieldLayout = !isExplictLayout && isInterpreterType;
// ===}} huatuo
if (klass->field_count)
{
for (uint16_t i = 0; i < klass->field_count; i++)
{
FieldInfo* field = klass->fields + i;
if (!Field::IsInstance(field))
continue;
const Il2CppType* ftype = Type::GetUnderlyingType(field->type);
if (Type::IsEmptyType(ftype))
{
std::string message;
message += "The field '";
message += field->name;
message += "' in type '";
message += klass->name;
message += "' has a type which was not generated by il2cpp.exe. Consider using a generic type which is not nested so deeply.";
klass->has_initialization_error = true;
Class::UpdateInitializedAndNoError(klass);
klass->initializationExceptionGCHandle = gc::GCHandle::New(il2cpp::vm::Exception::GetExecutionEngineException(message.c_str()), false);
return;
}
if (Type::IsReference(ftype) || (Type::IsStruct(ftype) && Class::HasReferences(Class::FromIl2CppType(ftype))))
klass->has_references = true;
}
il2cpp::metadata::Il2CppTypeVector fieldTypes;
il2cpp::metadata::Il2CppTypeVector staticFieldTypes;
il2cpp::metadata::Il2CppTypeVector threadStaticFieldTypes;
for (uint16_t i = 0; i < klass->field_count; i++)
{
FieldInfo* field = klass->fields + i;
const Il2CppType* ftype = Type::GetUnderlyingType(field->type);
if (Field::IsInstance(field))
fieldTypes.push_back(ftype);
else if (Field::IsNormalStatic(field))
staticFieldTypes.push_back(ftype);
else if (Field::IsThreadStatic(field))
threadStaticFieldTypes.push_back(ftype);
}
il2cpp::metadata::FieldLayout::FieldLayoutData layoutData;
il2cpp::metadata::FieldLayout::FieldLayoutData staticLayoutData;
il2cpp::metadata::FieldLayout::FieldLayoutData threadStaticLayoutData;
il2cpp::metadata::FieldLayout::LayoutFields(instanceSize, actualSize, klass->minimumAlignment, klass->packingSize, fieldTypes, layoutData);
klass->naturalAligment = layoutData.naturalAlignment;
instanceSize = layoutData.classSize;
// This is a value type with no instance fields, but at least one static field.
if (klass->valuetype && fieldTypes.size() == 0)
{
instanceSize = IL2CPP_SIZEOF_STRUCT_WITH_NO_INSTANCE_FIELDS + sizeof(Il2CppObject);
klass->actualSize = IL2CPP_SIZEOF_STRUCT_WITH_NO_INSTANCE_FIELDS + sizeof(Il2CppObject);
}
// ==={{ huatuo
// comput size when explicit layout
if (computSize && isExplictLayout && !fieldTypes.empty())
{
instanceSize = IL2CPP_SIZEOF_STRUCT_WITH_NO_INSTANCE_FIELDS + sizeof(Il2CppObject);
for (size_t i = 0; i < klass->field_count; i++)
{
FieldInfo* field = klass->fields + i;
if (Field::IsInstance(field))
{
const Il2CppType* ftype = Type::GetUnderlyingType(field->type);
il2cpp::metadata::SizeAndAlignment sa = il2cpp::metadata::FieldLayout::GetTypeSizeAndAlignment(ftype);
// offset has add ObjectHeader
instanceSize = std::max(instanceSize, field->offset + sa.size);
}
}
}